Rod for welding



Patented Jan. 20, 1931 UNITED STATES PATENT/OFFICE CHARLES J. KOTCIII, OF CHICAGO, ILLINOIS, yASSIGNOB TO-XORO CORPORATION, OF

'WAUKEGAN, ILLINOIS, A CORPORATION vOF ILLINOIS BOD FOB WELDING This invention relates to improvements in rods for welding, brazing or the like, and one of the objects of the invention is to provide anv improved rod of this character which is constructed or composed of all of the material necessary to produce, when in use, the necessary metal or alloy requisite for the desired result, so as to produce when fused,

.a deposit havingA characteristics similar to i same is provided on its face with a supply of ose flux, is ent or shaped into form to enc the flux, a portion of the rod at one end of the joined surfaces being preferably shaped to form a protuberance w ich `is forced between the adjacent surfaces to cause the metal strain to bev exerted in such a wa that the opposite edges of the rodwill be, orced together, thereby providing a locking means for the separated parts. v v

To the attainment of these ends and the accomplishment of other new and useful objects as will ap ear,l the invention consists in the features o novelty in substantially the construction, combination andY arrangement of the several-parts hereinafter moe fully described and claimed and shown in the 'accompanying drawings illustrating this invention and in which Figure 1 is a transverse sectional view, on an enlarged scale, of a flat rod prepared in accordance with the principles of this 'invention and having iluxing material coating the upper surface thereof. A

Figure 2 is a view similar to Figure 1 bending or shaping the rod.

Figure 3v is a sectional view of the rod after it has been completely bent into shape.

Figure 4 is a view showin the next step in the operation of completing the formation of the rod after it has been shaped as shown in Fi re 3.

Figure 5 is a sectional view'of the conipleted rod.

Figure 6 is'a detail sectional view of a portion of the rod showin another method of holdin the flux to the ace of the rod. v

In producing the rod a substantially flat body portion formed of any suitable material is provided, one face of which is shaped to form two convexed portions 10 which are laterali? spaced from each other to rvide reduce portions .11 intermediate t e convexed portions. Intermediate these reducedv portions and on the same face of the body :1s formed a protuberance-12 which may be of any desired configuration and of any de# sired size.

The opposite faces ofthe convexed portions 10 may, if desired, be concaved as shown at 13 in Figure 1, or' may be substantially flat and shaped to form recesses or ves 14, as shown in Figure 6, either extending throughout the respective surfaces or at predetermined intervals.

Any suitable iluxing material 15 may be applied to the faces 13 of the portions 10 of the body, or if the face is sha d as shown in Figure 6, the fluxing materia may be placed within the recesses 14 so as to maintain the iluxing material against displacement with reslpect to thebody portion o the rod.

he body portion is then bentv upon mecause the faces 13 of the convexed portions 10 to be shown in igures '2 and 3. The rod is thus ybent until the longitudinal edges 16 of the portions 10 opposite to theireduced portions Asitioned adjacent each otheras 11 are brought into'close proximity to each other, preferably .sov that they Ywill abut.

This operation will encase or enclose the fluxshowing the first step in the operation of ing material 15 entirely within the body por'- tion of the rod and when so bent the'pro' tuberance 12 will project beyond the periphf xg of the rod at a point opposite to the point the protuberance 12 is forced into the space Y between the faces 13 of the portions 10 and the forcing of-the protuberance 12 between `extrudin process, caused by any suitable means may be provided for thus forcing the protuberance 12- into this position. l

A suitable and eiiicient means for effecting this result embodies a die 17 having an opening l8'therethrough and which opening is Aof a size to produce the desired diameter of the rod by an extruding operation so that when the rod passes through the die it will be of the desired diameter. The opening 18 in the die is preferably provided with an enlarged entrance 19. A

As the protubera-nce 12 is forced between the ad'acent faces 13 and the portions 10 of the ro the metal ofthe rod will be caused to exert a strain in the body of the rod in direction to cause the o posite edges 16 of the rod to be forced tig tly together, thereby providing a locking means for the separated portion of the rod, as shown'in Figure 5.

With this improved construction the flux 15 will be completely housed or encased within the body of the rod. In the eventthat a greater supply of {iux 15 is supplied to the surfaces 13 of the rod when the rod is in its flat form, than is necessary in the'linal production of the rod,the excess amount of ux will be forced out of the rod during the the drawing of the rod t rough the die 1.7.

The reduced portions 11 on the opposite sides-of the protuberance 12 facilitate in the shaping and bending of the rod and also in the roximate portions of the faces 13.

A erthe rod has been thus formed, it will have the appearance ofa solid rod as the edges 16 thereof will be tightly held against each other. At the same time the flux 15 will not have any tendency to separate the edges 16, due to the fact that the strain of the material caused by the forcing of the protuberance into the space between the portions 10 at one edge thereof will have the effect ofovercoming any tendency ofthe edges'l to separate.

While the preferred form of the invention vhas beenherein shown and described, it is to be understood thatvarious changes may be made in the details of eonstructionand in the combination and arrangement of the several parts, within Ithe scope of the claims, without departing from the spirit of this invention.

lWhat is claimed asnew is -1. A .weldin rod blank embodying a. body portion provi ed with a protuberance s aced rom the lateral edges thereof, said boV y being reduced in cross section on opposite sides of said protuberance whereby the body may be bent .upon itself Aon opposite sides of the protuberanee to cause the outer lateral edges of the body to abut, the said protuberaiace separation.

being ada ted to be forced between the adjacent fol ed faces of the body to maintain the abuttin edges against separation.

2. A wel ing rod blank embodying a body portion, portions of said body adjacent the transverse center thereof being reduced in thickness whereby said body may be folded upon itself to cause the outer lateral edges thereof to abut, a portion of said body adjacent the said reduced portion being adapted to be forced bet-Ween the adjacent faces of said folded portions'to cause said lateral edges to abut and 'to be maintained against separation.

3. A welding rod blank embodying a body portion, portions of said body adjacent the transverse center thereof being reduced in thickness whereby said body may be folded upon itself to cause the outer lateral edges 4.. A welding rod formed of houow body' portion open. alongA one longitudinal edge, iuxing material within said body, and means for creating a strain in said body from a point opposite the said opening for maintaining the edges of said opening in abutting relation. 1 i

5. A `welding rod formed of a hollow body lportion open along one longitudinal edge,

uxing material within said body, and means for creating a strain in said body from a point opposite the said opening for maintaining the edges of said opening in abutting relation, portions of said' body on the opposite side -of a line disposed opposite to said opening being reduced in thickness to facilitate shaping the rod. j

6. A Welding rod embodying a body split longitudinally thereof, flux material within the opening formed by saidsplit, and means for causinginherent strain to be created in the rod to hold the edges of thesplit portion against separation.- A

7. A welding rod embodying a body split -longitudinally thereof, flux material within the opening formed by lsaid split, and means for causing inherent strain to be created in the rod and transverse to the length thereof to hold the edges of the split portion against i 8. The method of forming 'welding rods which consists in providing a-body portion split lengthwise thereof, then placing iiux within the Split portion, `and then forcing a portion tocreate an internal stress in the I- material to hold the edges of said split porroximity and against separation by the intion against separation. l erent strain created thereby.

. 9. The method-of forming welding rods In testimony whereof I'have signed my which consists in providin a body portion name to this sfbcification on this 10th day split lengthwise thereof, t en lacing flux of August, A. 1928. l l within the split portion, and t en forcing CHARLES J. KOTCHI. byan extruding action a portion of the body opposite to the spl-it portion` between the proximate faces of said split portion -to cre-v ate an internal stress in the material to hold the edges of said split portion against separation. v

l0. The method of manufacturing weldingA rods which consists in forming on a substantially flat bod portion a protuberance, then bending the body upon itself on opposite sides of said protuberance until the outer lateral edges ofthe body are brought into proximity, and then forcing said protuberance between said faces to hold said edges against separation. 'l

ll. The method of manufacturing welding rods .which consists in forming on a substantially fiat 'body portion a protuberance and reducing the body'in thickness on o posite sides of said protuberance, then bending the body upon'itself on opposite sides of said protuberance until the outer lateral edges of the body are brought into proximity, and then forcing lsaid protuberance between said faces to hold said edges against separation.

12. A welding'rod comprising a longitudinally split bod ,and means for-causin int the edges of the split portion against sep-Y herent strain to created in the rod to' old aration.

13. A welding rod comprising a longitudinally split body,and means for holding the outer edges of thesplit portions in intimate contact and against separation by inherent pressure exerted thereon from a point of the rod opposite `to said edges.

14; A welding rod comprising-a' longituv' dinally split body, the edgesof the body disposed in closeproximity, and .forcing means opposite to said edges for maintaining them in intimate contact and against separation. A A 15. The method of producing a welding rod which consists in providing a bodyof a substantial width, then bringing the lateral edges of the body together to form an opening in the body of the rod, then forcing into the opening a portion of the said body opposite to said edges to maintain the latter, inclose proximity and against separation by the inherent strain created thereby.

16. The method of lproducing a welding rod' which consists in providing a body of a substantial width, then bringing the'. lateral edges ofthe body together to form an opening in the body ofthe rod, then compressing a portion of the said body opposite to said edges tol maintain the latter in close vso lll 

